Journal
APPLIED SCIENCES-BASEL
Volume 12, Issue 16, Pages -Publisher
MDPI
DOI: 10.3390/app12168052
Keywords
EEG; stress; machine learning; XGBoost
Categories
Funding
- Ministry of Science & Technology, R.O.C. [MOST109-2627-H-028-003]
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This study aims to detect stress by analyzing the electroencephalogram (EEG) of table tennis players using machine learning. The findings showed that XGBoost algorithm achieved high accuracy in three-level stress classification.
Electroencephalography (EEG) has been widely used in the research of stress detection in recent years; yet, how to analyze an EEG is an important issue for upgrading the accuracy of stress detection. This study aims to collect the EEG of table tennis players by a stress test and analyze it with machine learning to identify the models with optimal accuracy. The research methods are collecting the EEG of table tennis players using the Stroop color and word test and mental arithmetic, extracting features by data preprocessing and then making comparisons using the algorithms of logistic regression, support vector machine, decision tree C4.5, classification and regression tree, random forest, and extreme gradient boosting (XGBoost). The research findings indicated that, in three-level stress classification, XGBoost had an 86.49% accuracy in the case of the generalized model. This study outperformed other studies by up to 11.27% in three-level classification. The conclusion of this study is that a stress detection model that was built with the data on the brain waves of table tennis players could distinguish high stress, medium stress, and low stress, as this study provided the best classifying results based on the past research in three-level stress classification with an EEG.
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